Log Message:
-----------
Document problems with release links in early branches.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.490 -> r1.491)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml.diff?r1=1.490&r2=1.491)